Petroleum Refinery Engineering MCQs

Question 1

Solvent used in the deasphalting process is

Accepted Answer

Propane

Answer

Furfurol

Answer

Phenol

Answer

Hexane

Question 2

In hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen

Accepted Answer

Both A & B

Answer

Enhances the desulphurisation process

Answer

Minimises coke formation

Answer

Neither A nor B

Question 3

The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mmHg.

Accepted Answer

120

Answer

1.2

Answer

12

Answer

700

Question 4

LPG when brought to atmospheric pressure & temperature will be a

Accepted Answer

Gas heavier than air

Answer

Liquid lighter than water

Answer

Liquid heavier than water

Answer

Gas lighter than air

Question 5

Operating temperature and pressure in catalytic reforming is about

Accepted Answer

15 - 45 kgf/cm 2 & 450 - 550°C

Answer

1 - 5 kgf/cm 2 & 200°C

Answer

50 - 75 kgf/cm 2 & 600 - 800°C

Answer

5 - 10 kgf/cm 2 & 150 - 250°C

Question 6

Aniline point is a property of the

Accepted Answer

Naphtha

Answer

Diesel

Answer

LPG

Answer

Gasoline

Question 7

Penetration test determines the __________ of the grease.

Accepted Answer

Stiffness

Answer

Lubricating properties (e.g. oilness)

Answer

Service temperature

Answer

Variation in viscosity with temperature

Question 8

Main constituent of natural gas is

Accepted Answer

CH 4

Answer

C 2 H 2

Answer

C 2 H 4

Answer

C 2 H 6

Question 9

Smoke point of kerosene is the

Accepted Answer

Maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp

Answer

Time after which smoking starts on burning

Answer

Temperature at which smoking starts

Answer

None of these